Operating-table.



E. E. HELFRIOH.

OPERATING TABLE.

APPLICATION FILED SEPT. 12, 1908.

Patented Feb. 8, 1910.

0 7.. H 1 H V i Inventor.

7% Max; 40

A i torney.

and a longitudinally cxtendihle foot section,

ELMER E. HELFRICH, OF OKLAHOMA, OKLAHOMA.

OPERATING-TABLE.

Specification of Letters Patent.

Patented Feb. 8, 1910.

Application filed September 12, 1908. Serial No. 452,749.

To all whom it may concern: l

Be it known that l, ELMER E. Hnnrmon', a citizen of the United States, residing at. Oklahoma city, in the county of Oklahoma and. State of Oklahoma, have invented certain new and useful. Improvements in Operating-Tables, of which the following is a specification.

My invention relates to operating tables, in which the table is constructed in a manner to consist of three sections, a head section, a vertically adjustable central section with spring and lever adjusting mechanisms,

all of which will hereinafter be fully explained.

The objects of my invention are; first, to provide an operating table in which the central third or section of the table can be depressed or lowered at will; second, that said central section shall at all times maintain a horizontal position; third, that the foot section may be extended longitudinally; fourth, to combine utility with cheapness. I accomplish these objects by the mechanism illustrated in the accompanying drawing, forming a part of this specification, in which:

Figure 1 is a side elevation of my table with the central section elevated; Fig. 2 is a side elevation in which the central section is lowered or depressed and the foot section is extended; Fig. 3 is a horizontal sectional view on line a: Fig. 1; Fig. 4 is a vertical section on line w- Fig. 1; Fig. 5 is a vertical section on line as" Flg. 2.

Similar ch tractors refer to similar parts in the severe views. 7

Referring to the drawings, A indicates the head section of the table consisting of the legs 1 2 3 4 having secured thereto and flush with their upper ends the side frameboards a and the end frame-boards, all four of which are similar and which constitute i the rectangular frame of the table s'ect itin and to which the top I) is secured provided with a padded or cushioned covering c to afford a yielding surface Sec Figs. 1 and 3. To secure more. firmly in position the said legs 1 2 3 4 have the stay-boards (I c f cured thereto near their lower ends.

The central section B consists of a table top board 1 having a padded or cushioned covering 9, to prevent said table topfro warping and to preserve a uniformity of appearance of the three sections of the table the said top board has secured to its under l horizontal position.

surface the edges of four similar boards of equal width three of which, it h and h", are shown. -See Figs. 1 and 4. To provide support for said table section and that it shall at all times maintain a horizontal position the table top board 9 has firmly secured to its under surface, by bolts or rivets i, the body portion of the supporting plate j having its ends erforated and turned at right-angles forming the downwardly projecting attaching members j and j in which the ends of the cross-bars 7c and Z are pivoted and to which the pendentadjusting rods mi and n are attached, pivotally by rivets or bolts. See Figs. 3 and 4. A short distance from the ends of the said cross-bar k the ends of the side bars In and k" are secured at right-angles thereto in any convenient manner, preferably by brazing as in the present case and to the opposite ends of the said side bars the duplicate crossbar k is sin'iilarly secured, thus forming a rectangular frame of rods having end lateral-pivotal projections the said frame having a duplicate having an inner cross-bar l, side bars I and l" and an outer cross-bar Z The ends of the cross-bars ir' and Z are pivoted into the perforated leg-plates p and p secured to the lower portion of the inner sides of the table legs 1 and 3 of section A. The said rectangular frames of rods are properly du plicate guiding frames to guide the central section B of the table in its movements and bytheir being pivoted on a vertical line and equidistant apart they are at all times parallel and maintain the table top in a To elevate and depress the said section B of the table an operating red I) is secured by stirrups q and 1' to the under. edge of the stay-boards (I and f and to rotate said rod l) the ratchet lever 1 5 beint, provided with a spring pawl, has its lower end secured upon the front end of said rod and intermediate its ends, the operating arms r and r have their lower ends firmly secured thereon and have their u per ends pivotally secured to the lower en s of the pendent. rods m and n; and to maintain the said table section in any position within its scope the ratchet I has its body portion vertical and its ends perforated and bent laterally and also upward and parallel to llt) crating rod D, said ratchet lever havin a pawl to engage the said ratchet. See F igs. 1 2 3 and 4. To assist in the elevation of the said section B of the table the spiral springs G and G are provided having theninner and lower ends hooked into perforations in the rod clamps s and 8 secured upon the rods! and l" of the lower guide frame and havin their u per ends secured to the under surace of t e table top board I) of the section A in any convenient manner, as by an e e-hook b.

The t ird or foot section (1 of said table is constructed as follows; four similar boards of equal width, the side boards 25 and t being slightly longer than the end boards of which t is one are firmly secured to the upper endsof the four posts 5 6 7 8 and on a line therewith thus formin a rectan ular frame .to which the top boar u is firm y secured the upper surface of said board having a padded or cushioned cover a. To provide means whereby the said section C ma be extended, Ion itudinally, the lower en s of the legs 5 and 6 and 7 and 8 have horizontal boards 1; and 11' secured to their outer surfaces and flush therewith, each of said boards has a longitudinal groove 1: cut in its outer surface its entire length, and to the inner surfaces of the sta -boards a? and f are secured strips d and f being adapted to slidably fit said grooves. See Figs. 1 2 3 and 5. To prevent the said stay-boards (I and f from spreading the staying strip to is secured to the stubosts 9.and 10 which support the said stayoards. See Figs. 3 and 5. For the purpose of operating said extension section C duplicate perforated plates y and y are secured to the outer surfaces of said stay-boards (Z and f and the ends of the o crating rod H are pivoted therein; the said rod havin 'secured thereon the operating lever H, an intermediate its ends said rod has firmly secured thereon the lower ends of the operating arms J and K which have their upper ends pivotally attached each to one of the ends of one of the operation rods L and L which have their op osite ends ivotally attached to the crossro M which as its ends secured in the upper portion of the posts 6 and 7. See Figs. 1 2 3 and 5.

In operation, the central section of the table 13 is placed on the same horizontal plane as the other sections A and C and section C is placed nearsection B; .the patient is placed upon the table, face down- 'ward, and section C is extended to suit the length of the patient; the two sections of the vertebra or spine which impinge upon the nerves and cause ailment are found, the central section B ,of the table is lowered to a desired position in which position it is mainined by the ratchet F and the ratchet lever @Ilie thumbs of the operator ar la between the impinging vertebra and pressed downward until the patient contacts with the lowered section B of the table thus adjusting the spine and relieving the impinged nDl'VPS.

Having thus described my inventionwhat I claim as new and useful and desire to serum by Letters Patent is---- 1. In an operating table; a table having a stationary or fixed head section for the support of the upper portion of the patient, a longitudinally slidable section provided with means for sliding the same for supporting the lower portion or limbs of the patient and a central or middle vertically .adjustablc section with means for adjusting the same to support the middle portion of the patient during operation. 2. In an operatin table having a fixed head section having legs at the sides thereof; a pair of longitudinal stay-boards secured to the lower portion of the side legs of the said head section and having stub legs secured to their opposite ends to support said ends and maintain them in a horizontal position, a cross sta to said stuii legs to preserve the parallel po; sition of the said stay-boards and in conjunction therewith form a table sup orting frame; a foot extension section of sand table having four legs the sides of which at their lower endsare rabbeted or cut down and have secured in the said rabbets duplicate longitudinal]; grooved boards flush with the outer sur ace of said legs the said boards being adapted to slide on strips fittin in the rooves thereof and which are secure to the inner surface of the said stay-boards to provide for the extension of the said foot section, substantially as described.

3. In an operating table having three sections, a fixed head section having le at the sides thereof and having secured to t e lower portion of its legs a (pair of stay-boards havmg their opposite on s supported b stub legs secured thereto, a cross strip w aving its ends secured to said stub legs to hold said stay-boards parallel and in conjunction with the same to form a sup orting frame; a middle vertically adjustab le section; a' supporting plate having a body portion secured tion havin our supporting legs; a pair of horizontal y groove boards set in the sides strip w having its ends secured to the under surface of said middle section v 10 arms and a handle 01' said legs flush with their outer surfaces 1 and a pair of operating table and and at their lower ends said hoards be ing adapted to slide upon strips which fit within the grooves thereof and are secured to the inner surface of the i to support the said foot section; an operatt ing rod 11 extending across and rotatnhiy j secured to said stay-boards said rod having secured thereon a pair 0f operating iirnilv levelto rotate said rod;

rods secured to said to sald arms to extend said table section, for the purpose specified.

In testimony whereof I aflix my signature said stay-boards in presence of two witnesses.

ELMER E. HELFRIQH.

Witnesses Jiis. S. GLAnlsn, E. Enwimns. 

